Hi all: I am building a 64bit cross compiler for sl91 target on a redhat 8.0 for myself. I do have an AMD64 system that installed a sl91 AMD64 on it. I compiled gcc3.3.3 amd64 package --enabled-languege=c I compiled binutil. But when I compile glibc, the configure command reported cannot detemine the size of unsigned long and refused to go any further. My plan was to compile: gcc3.3.3 amd64 --enabled-langueges=c binutils glibc gcc3.3.3amd64 with all langueges is there anything wrong with this procedure? Help is greately appreciated. Richard